RHSA-2026:50774: Important: libtiff security update

Published Aug 5, 2026
·
Updated

Important: libtiff security update

Other sources

The libtiff packages contain a library of functions for manipulating Tagged Image File Format (TIFF) files.Security Fix(es): libtiff: libtiff: Heap-based buffer overflow via crafted PixarLog-compressed TIFF image (CVE-2026-12912) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Red Hat

Affected Software

17 affected components
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Life Cycle
Red Hat Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
Red Hat Red Hat Enterprise Linux Server - AUS
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support
Red Hat Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for IBM z Systems - 4 years of updates
Red Hat Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support
Red Hat Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle
Red Hat Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for ARM 64 - 4 years of updates
Red Hat Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions

Event History

Aug 5, 2026
Advisory Published
via Red Hat·12:00 AM
Data Sourced
via Red Hat·12:00 AM
RemedyDescriptionAffected Software
Advisory Published
via Red Hat·10:19 AM
Data Sourced
via Red Hat·10:19 AM
Severity
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Frequently Asked Questions

1

What is the severity of RHSA-2026:50774?

The severity of RHSA-2026:50774 is rated as high with a score of 7.

2

What vulnerabilities are addressed in RHSA-2026:50774?

RHSA-2026:50774 addresses a heap-based buffer overflow vulnerability in libtiff via crafted PixarLog-compressed TIFF images, identified as CVE-2026-12912.

3

How do I fix RHSA-2026:50774?

To fix RHSA-2026:50774, update the libtiff packages to the latest available version provided by Red Hat.

4

Which systems are affected by RHSA-2026:50774?

RHSA-2026:50774 affects multiple Red Hat Enterprise Linux systems, including IBM z Systems, x86_64, and Power LE.

5

What is the potential impact of not addressing RHSA-2026:50774?

Failure to address RHSA-2026:50774 could lead to exploitation via crafted TIFF images, potentially resulting in unauthorized access or system compromise.

Contact

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